Trailer hitch lock



FIG. 1 is a perspective view of a trailer hitch lock showing my newdesign;

FIG. 2 is an enlarged front view thereof;

FIG. 3 is an enlarged bottom view thereof;

FIG. 4 is an enlarged left side view thereof, it being understood thatthe opposite side is a mirror image thereof;

FIG. 5 is an enlarged top view thereof; and,

FIG. 6 is an enlarged rear view thereof.

The ornamental design for a trailer hitch lock, as shown and described.